CN216789365U - Pulse type electromagnetic driving device and electromagnetic valve - Google Patents

Abstract

The utility model relates to a pulse type electromagnetic driving device, which comprises a bracket, wherein a movable iron core and an iron core channel for the movable iron core to move linearly are arranged in the bracket, the bracket is provided with a coil around the iron core channel, one end of the iron core channel is provided with a static iron core, the other end of the iron core channel is in an open shape for the movable iron core to extend out, the end part of the movable iron core extending out of the iron core channel is provided with a sealing element, an elastic element for pushing the movable iron core out of the iron core channel is arranged in the iron core channel, one end of the iron core channel provided with the static iron core is also provided with a magnet, and the coil attracts the movable iron core to move towards the static iron core and then is attracted by the magnet when short-time forward current is introduced into the coil; when the coil is connected with short-time reverse current, the coil repels the movable iron core towards the direction away from the static iron core, and the movable iron core and the magnet are pushed outwards by the elastic piece after being away from the static iron core. By adopting the scheme, the utility model provides the pulse type electromagnetic driving device with long service life.

Description

Pulse type electromagnetic driving device and electromagnetic valve

Technical Field

The utility model relates to the field of electromagnetic valves, in particular to a pulse type electromagnetic driving device and an electromagnetic valve adopting the pulse type electromagnetic driving device.

Background

The electromagnetic valve is industrial equipment controlled by electromagnetism, is an automatic basic element for controlling fluid, belongs to an actuator and is not limited to hydraulic pressure and pneumatics. Used in industrial control systems to regulate the direction, flow, velocity and other parameters of a medium. The electromagnetic valve can be matched with different circuits to realize expected control, and the precision and flexibility of the control can be ensured. There are many types of solenoid valves, with different solenoid valves functioning at different locations in the control system, the most common being check valves, safety valves, directional control valves, speed regulating valves, etc. Principle of the solenoid valve: when the electromagnetic valve is electrified, the electromagnetic coil generates electromagnetic force to lift the closing piece from the valve seat, and the valve is opened; when the power is cut off, the electromagnetic force disappears, the spring presses the closing part on the valve seat, and the valve is closed.

The existing electromagnetic valves on the market mostly adopt a pilot mode (side hole boosting and central hole reducing) to achieve the effect of opening and closing the electromagnetic valves, and the electromagnetic valves are easy to lose effectiveness due to the problem of foreign matters; the water discharge electromagnetic valves on the market are in direct-acting type (the coil is powered on and off to control the electromagnetic valve switch), and when the water discharge electromagnetic valves are used for a long time, the power consumption is high, and the coil is easy to cause a series of other problems such as disconnection, short circuit and the like due to overhigh temperature after being powered on for a long time.

Disclosure of Invention

Aiming at the defects in the prior art, the utility model aims to provide a pulse type electromagnetic driving device with long service life.

In order to achieve the purpose, the utility model provides the following technical scheme: including the support, the support in be provided with and move the iron core and supply to move the iron core passageway of iron core rectilinear movement, the support be provided with the coil around the iron core passageway, iron core passageway one end be provided with quiet iron core, the other end is the open form that supplies to move the iron core and stretch out, the tip that moves the iron core and stretch out the iron core passageway be provided with the sealing member, the iron core passageway in be provided with the elastic component that will move the outer propelling movement of iron core to the iron core passageway, its characterized in that: the end of the iron core channel, which is provided with the static iron core, is also provided with a magnet, and when the coil is electrified with short-time forward current, the coil attracts the movable iron core to move towards the static iron core and then is attracted by the magnet; when the coil is connected with short-time reverse current, the coil repels the movable iron core to the direction far away from the static iron core, and the movable iron core and the magnet are pushed outwards by the elastic piece after being far away from the static iron core.

Through adopting above-mentioned technical scheme, only let in the coil by short time electric current (pulse current) and drive the movable iron core and remove, keep this position by the magnet attraction when removing to the position (solenoid valve open position) that is close to quiet iron core, keep this position by the spring action when removing to the position (solenoid valve open position) of keeping away from quiet iron core, avoid during to the coil circular telegram for a long time, lead to the easy high temperature of coil to lead to a series of other problems such as broken string, short circuit to the life of extension device.

The utility model is further configured to: the elastic piece is a compression spring, the end part of the movable iron core, which faces the static iron core, is provided with a spring groove in a surrounding manner, and the compression spring is sleeved in the spring groove and compressed in the movable iron core and the static iron core.

Through adopting above-mentioned technical scheme, compression spring overlaps in the spring groove that encircles movable iron core to the compression is in movable iron core and quiet iron core, and assembly, deformation and elastic force are more stable.

The utility model also provides an electromagnetic valve adopting the pulse type electromagnetic driving device, and provides the following technical scheme: the movable iron core is far away from the static iron core, the sealing element is in sealing fit with the sealing port, and the communication between the outer cavity and the inner cavity is cut off.

Through adopting above-mentioned technical scheme, by the direct airtight sealing opening of sealing member, save the guide's formula structure (the side opening steps up, and the centre bore step down) on the traditional sealing member to avoid leading to the problem of solenoid valve inefficacy because of the problem of foreign matter jam, improve the reliability of device operation.

The utility model is further configured to: the valve body is characterized by further comprising an iron core sleeve, the iron core sleeve is arranged in the valve body when the support is fixed on the valve body, the iron core sleeve is provided with a tubular extension portion extending into the support, and an iron core channel is formed inside the tubular extension portion.

Through adopting above-mentioned technical scheme, the iron core cover makes the action of moving the iron core more smooth and easy, and is spacing in the valve body when the support is fixed in the valve body, and it is more convenient to assemble.

Drawings

FIG. 1 is a cross-sectional view of an embodiment of the present invention.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

As shown in fig. 1, the present invention discloses an electromagnetic valve, which includes a valve body 1 and a support 2 fixed to each other, a movable iron core 3 and an iron core channel 21 for the movable iron core 3 to move linearly are disposed in the support 2, the support 2 is provided with a coil 22 around the iron core channel 21, one end of the iron core channel 21 is provided with a stationary iron core 23, the other end of the iron core channel 21 is in an open state for the movable iron core 3 to extend out, the end of the movable iron core 3 extending out of the iron core channel 21 is provided with a sealing member 31, the sealing member 31 is generally a sealing silica gel member, an elastic member 24 for pushing the movable iron core 3 out of the iron core channel 21 is disposed in the iron core channel 21, one end of the iron core channel 21 provided with the stationary iron core 23 is further provided with a magnet 25, and the coil 22 attracts the movable iron core 3 to move towards the stationary iron core 23 when short-time forward current is applied to the coil 22 and then is attracted by the magnet 25; when the coil 22 is electrified with short-time reverse current, the coil 22 repels the movable iron core 3 to the direction far away from the static iron core 23, the movable iron core 3 is pushed out of the iron core channel 21 by the elastic piece 24 after being far away from the magnet 25, only the short-time current (pulse current) is electrified to drive the movable iron core 3 to move, when the movable iron core is moved to the position (the opening position of the electromagnetic valve) close to the static iron core 23, the position is kept by the attraction of the magnet 25, when the movable iron core is moved to the position (the opening position of the electromagnetic valve) far away from the static iron core 23, the position is kept by the spring action, and a series of other problems such as wire breakage, short circuit and the like caused by overhigh temperature of the coil 22 due to the fact that the coil 22 is electrified for a long time are avoided in the period, so that the service life of the device is prolonged.

Elastic component 24 is compression spring, moves iron core 3 and encircles towards the tip of quiet iron core 23 and be provided with spring slot 32, and compression spring overlaps in spring slot 32 and compresses in moving iron core 3 and quiet iron core 23, and compression spring overlaps in the spring slot 32 that encircles and moves iron core 3 to compress in moving iron core 3 and quiet iron core 23, assembly, deformation and elastic force are more stable.

A separating ring 11 is arranged in a valve body 1, the internal space of the valve body 1 is separated into an outer cavity 13 provided with a water inlet end 12 and an inner cavity 15 provided with a water outlet end 14, a sealing opening 111 which is opposite to a sealing element 31 and forms communication between the outer cavity 13 and the inner cavity 15 is arranged at the end part of the separating ring 11, the sealing element 31 is in sealing fit with the sealing opening 111 when a movable iron core 3 is far away from a static iron core 23, the communication between the outer cavity 13 and the inner cavity 15 is cut off, the sealing opening 111 is directly sealed by the sealing element 31, and a pilot structure (side hole boosting and central hole reducing) on the traditional sealing element 31 is omitted, so that the problem that an electromagnetic valve fails due to the blockage of foreign matters is avoided, and the operation reliability of the device is improved.

The valve body is characterized by further comprising an iron core sleeve 16, the iron core sleeve 16 is located in the valve body 1 when the support 2 is fixed to the valve body 1, the iron core sleeve 16 is provided with a tubular extension portion 161 extending into the support 2, the inside of the tubular extension portion 161 serves as an iron core channel 21, the iron core sleeve 16 enables the action of the movable iron core 3 to be smoother, and when the support 2 is fixed to the valve body 1, the movable iron core is limited in the valve body 1, and therefore assembly is more convenient and faster.

Claims (3)

1. The utility model provides an impulse type electromagnetic driving device, includes the support, the support in be provided with and move the iron core and supply to move the iron core passageway of iron core rectilinear movement, the support be provided with the coil around the iron core passageway, iron core passageway one end be provided with quiet iron core, the other end is the open form that supplies to move the iron core and stretch out, the tip that moves the iron core and stretch out the iron core passageway be provided with the sealing member, the iron core passageway in be provided with the elastic component that will move the iron core to the outer propelling movement of iron core passageway, its characterized in that: the end of the iron core channel, which is provided with the static iron core, is also provided with a magnet, and when the coil is electrified with short-time forward current, the coil attracts the movable iron core to move towards the static iron core and then is attracted by the magnet; when the coil is connected with short-time reverse current, the coil repels the movable iron core to the direction far away from the static iron core, and the movable iron core and the magnet are pushed outwards by the elastic piece after being far away from the static iron core.

2. A pulsed electromagnetic drive according to claim 1, characterized in that: the elastic piece is a compression spring, the end part of the movable iron core, which faces the static iron core, is provided with a spring groove in a surrounding manner, and the compression spring is sleeved in the spring groove and compressed in the movable iron core and the static iron core.

3. A solenoid valve using a pulse type electromagnetic driving device according to claim 1, wherein: the valve body is fixed with the support, a separating ring is arranged in the valve body, the internal space of the valve body is separated into an outer cavity with a water inlet end and an inner cavity with a water outlet end, a sealing opening which is opposite to the sealing element and forms the communication between the outer cavity and the inner cavity is arranged at the end part of the separating ring, the sealing element is in sealing fit with the sealing opening when the movable iron core is far away from the static iron core, and the communication between the outer cavity and the inner cavity is cut off;

the valve body is characterized by further comprising an iron core sleeve, the iron core sleeve is arranged in the valve body when the support is fixed on the valve body, the iron core sleeve is provided with a tubular extension portion extending into the support, and an iron core channel is formed inside the tubular extension portion.

Images